Lamp Tube having Bent Segments

a technology of lamp tubes and segments, which is applied in the direction of discharge tubes/lamp details, discharge tubes, luminescent screens of discharge tubes, etc., can solve the problems of insatiable luminance efficiency of such lamp tubes, shortages of available lamp tubes, and blockage of portions of light emitted from them, etc., and achieve the effect of maximum luminance efficiency

Inactive Publication Date: 2009-11-12
CAI CHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]It is an object of the present invention to provide a lamp tube having bent segments formed by heating and bending a lamp tube body of the lamp tube thereat, so as to exempt the light ray emitted from each of portions of the lamp tube body from being blocked by the other portions of the lamp tube body and thus achieve the maximum luminance efficiency.

Problems solved by technology

However, these available lamp tubes each has some shortages contributed from the bent structure and will be described below.
First, the lamp tube body has portions too close to each other and thus some portions of the light emitted therefrom are blocked by the other portions of the lamp tube body.
Accordingly, luminance efficiency of such lamp tube is not satisfactory.
Second, in the case of a cold cathode tube, the tube has to be heated under a certain temperature before being softened and bent to be spiral in shape.

Method used

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  • Lamp Tube having Bent Segments
  • Lamp Tube having Bent Segments
  • Lamp Tube having Bent Segments

Examples

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Embodiment Construction

[0014]Referring to FIG. 1, a lamp tube having bent segments according to the present invention is shown therein. As shown, the lamp tube having bent segments has a lamp tube body 1, which takes a straight tubular shape. The lamp tube body 1 has an inner wall, on which a layer of fluorescent material (not shown) is pre-coated. The lamp tube body 1 further has a first and second ends, on each of which an electrode 11 is bonded thereto. An adequate amount of mercury and inactive gases is sealed within the lamp tube body 1. In this invention, the lamp tube body 1 is heated and then bent at portions desired to be bent to preliminary form the bent segments thereof. After being cooled, the lamp tube body 1 is actually formed with the bent segments. In a first embodiment, the lamp tube body 1 is bent to having a three-dimensional form (such termed herein), shown in FIG. 1. In a second embodiment, the lamp tube body 1 is bent to having another three-dimensional form, shown in FIG. 2. The lam...

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PUM

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Abstract

A lamp tube includes a lamp tube body, which are formed with bent segments by being heated, bent and then cooled at potions thereof desired to be bent. In this manner, luminance efficiency and lifetime of the lamp tube are effectively improved and prolonged.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a lamp tube having bent segments, and particularly to a lamp tube having bent segments formed through high temperature applied onto the lamp tube body thereof and through which luminance efficiency and lifetime of the lamp tube can be effectively improved.[0003]2. Description of the Prior Art[0004]Lamps are still the most popular lighting means today and thus lamp tubes are widely used in almost any place. Lamp light is emitted by bringing gas discharging forth and generating ultraviolet light as electrons resulted from the gas discharging process strike mercury sealed within the lamp tube. An alternative for lighting is the use of cold cathode tube (CCFL). The cold cathode-tube is pre-coated with fluorescent powders on an inner wall thereof and a miniscule amount of mercury and kinds of inactive gases are sealed therewithin. Further, two electrodes are provided at two ends of the cold c...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01J1/62
CPCH01J61/327
Inventor LIANG, FAN-KUEI
Owner CAI CHENG TECH
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